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Altera_Forum
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15 years ago

LVPECL with VCC of 3.3V on a Cyclone3

Hi, Is it possible to use LVPECL signals on a bank that has VCCIO = +3.3V? I am using a Cyclone3 part. Thanks
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

What dod you mean, LVPECL in- or output?

LVPECL output can be emulated by respective resistive dividers, LVPECL as input can be interfaced with a LVDS receiver and level shifting resistors. But no differential I/O standard is specified to work with VCCIO of 3.3 V.